copperas

[ kop-er-uhs ]

/ ˈkɒp ər əs /

noun Chemistry.

ferrous sulfate.

Origin of copperas

1400–50; late Middle English coperas, variant of Middle English coperose<Medieval Latin (aqua) cuprōsa copperish (water). See copper¹, -ose¹

Words nearby copperas

copper, Copper Age, copperah, Copper and Stone Age, copper arsenite, copperas, Copperas Cove, copper beech, Copper Belt, copper-bottomed, copper-fasten

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for copperas

Logwood dyes lilac, or pink; to turn red hackles brown, boil them in copperas.
The Teesdale Angler|R Lakeland
Can we then use "red liquor" (acetate of alumina), acetate of iron, copperas, etc.?
The Chemistry of Hat Manufacturing|Watson Smith
We're goin' up to Copperas Creek and there ain't a thing in that.
Mitch Miller|Edgar Lee Masters
Put the wool into this for 1/2 hour; then return it into the alum and copperas for 10 to 15 minutes.
Vegetable Dyes|Ethel M. Mairet

They next tried alum and copperas; but the great secret still escaped them.
Memoirs of Extraordinary Popular Delusions|Charles Mackay

British Dictionary definitions for copperas

copperas

/ (ˈkɒpərəs) /

noun

a less common name for ferrous sulphate

Word Origin for copperas

C14: coperose, via Old French from Medieval Latin cuperosa, perhaps originally in the phrase aqua cuprosa copper water

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

单词	copperas
释义	copperas [ kop-er-uhs ] / ˈkɒp ər əs / noun Chemistry. ferrous sulfate. Origin of copperas 1400–50; late Middle English coperas, variant of Middle English coperose<Medieval Latin (aqua) cuprōsa copperish (water). See copper¹, -ose¹ Words nearby copperas copper, Copper Age, copperah, Copper and Stone Age, copper arsenite, copperas, Copperas Cove, copper beech, Copper Belt, copper-bottomed, copper-fasten Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for copperas Logwood dyes lilac, or pink; to turn red hackles brown, boil them in copperas. The Teesdale Angler\|R Lakeland Can we then use "red liquor" (acetate of alumina), acetate of iron, copperas, etc.? The Chemistry of Hat Manufacturing\|Watson Smith We're goin' up to Copperas Creek and there ain't a thing in that. Mitch Miller\|Edgar Lee Masters Put the wool into this for 1/2 hour; then return it into the alum and copperas for 10 to 15 minutes. Vegetable Dyes\|Ethel M. Mairet They next tried alum and copperas; but the great secret still escaped them. Memoirs of Extraordinary Popular Delusions\|Charles Mackay British Dictionary definitions for copperas copperas / (ˈkɒpərəs) / noun a less common name for ferrous sulphate Word Origin for copperas C14: coperose, via Old French from Medieval Latin cuperosa, perhaps originally in the phrase aqua cuprosa copper water Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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